Tension device for grain-binders



(No Model.) 8

. W. H. STINE.

TENSION DEVICE FOR GRAIN BINDERS.

No. 894,891. Patented Dec. 18, 1888.

' the hook 71.

UNITED STATES PATENT OFFICE.

WILLIAM n. sTINE, or MARIE'ITA, INDIANA.

TENSION DEVICE FOR GRAI -sinuses.

SPECIFICATION forming part of Letters F'atent No.'394,891, dated December 18, 1888.

Application filed June 4, 1888- To all whom it may concern:

Be it known that I, WILLIAM H.- STINE, a resident of the town of Marietta, 'in' the county of Shelby and State of Indiana, have invented certain new and useful Improve these objectsby the mechanism illnstrated in the following drawings.

Figure '1 is a side view of the device in a horizontal position, and Fig. 2 is a top View.

Similar letters refer to similar parts throughout the several views.

The base b, the rests "r the supportss fi, I

and'arm a. constitute the frame-work of the device, which'is fastened to the top of the box I) by bolts or screws so. Therollers '7' r rotate on their respective axles am a so, between the supportssp and the'arms of the yoke y. The yoke y is held in position bythe arm a,

the supports .511 the guides g g and the axle cm; on the rests 1- The arm a is attached to the base I) and curves upward'and over the roller 7', the eye e being vertical totheline'of contact between the rollers r r and the angular guides g g resting laxly on the arms of the yoke on the outward sides of the supports $11 The box Z) is the receptacle of the twineball fl), and is provided with a door, d, held by The thread t passes from the ball upward through the eye 2, between the rollers 'r 1", through the'eye of the arm a, and thence through the usual guides to the needle of the binder. The extension ea: of the yoke y is furnished with springs sp sp' and aunt, n. The spring 51.) encircles said extension, with one of its ends resting against the branches of the yoke and its other against the arm La, and expanding'forces back the yoke y with the roller 2*, forming a space between the rollers for the purpose of threading. The spring 819' also encircles said ex- Serial No. 276,157. (No modal.)

tension, with one of its ends resting against the arm a and its other end against the nut 01, and retaining sullicient elasticity under pressure by thenut n admits a movement of the yoke y, and the roller 7? conforming the space'between the rollers to knots and irreg ularities of the thread. The not n is placed and moves on the threaded end of-said extension, and is used for the purpose herein.- after indicated. By compressing the springs in the use of the nut n the roller 0" is drawn to the roller 1*, pressing the thread t between them with the force necessary to produce the proper tension,- the springs affording sufficient elasticity to allow knots or enlargements of the thread to pass without unnecessary straining inthe process of binding. By relaxing the springs the rollers are *parted, so as to allow an easy passage in threading.

This device may be used in any position and applied to any binder now in use.

WVhat I claim, and desire to secure by Let ters Patent of the United States, is-

The combination, in a tension device, of the box 19, the eye 6 in the base I the rests T the supports spaforming bearings forthe axle am of the rollerr, thearm a, forming a rollers r r, the axles aw, mounted in stationary bearings um, mounted in sliding bearings controlled by the rests r of the base'b, the guides g g of the arm a, and the spring-con.- t-rolled extension of the yoke y, the yoke y enpurpose. set forth.

' WILLIAM H. STINE.

- Witnesses:

ADAM MUTZ, Anos T. DAvIs.

bearing for the extension 600 of the-yoke'y, the

compassing the supports sp in which yoke- 

